1. Sample Weight Solid sample weight: 0.20~1.00g.Semi-solid sample weight: 1.00~2.00g.Liquid sample weight: 2.00~10.00ml.(For full determination, the equivalent nitrogen is 5~25mg, while micro-determination is 30~200mg.) 2. Digesting Put sample into dry digestion tube of 250ml or 500ml, add 0

The chloride ion determinator is very important in the application of construction industry. As the chloride ion is the inducing factor that cause the rust, it is extremely essential to control the chloride ion content of the concrete material in order to avoid the steel bar from rusting. Content de

Among all the promotional index of the nitrogen determination apparatus, the most crucial one is the actual determined recovery rate, which enables the client to know both the actual recovery rate and the determining accuracy of the apparatus he is about to purchasing.Detailed method for the determi